Which subgroup is the lowest?

The answer to this question would be :4.) SpeciesIn taxonomy, the organism will be divided into different groups based on a specific character from that organism. It could be an organ

The sequence from top to bottom would be:

life

domain

kingdom

phylum

class

order

family

genus

species

The lowest subgroup is called species

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products